baber/WOPTO huggingface dataset:
Patent GB-710922-A (GB)
Title: Transformer for operating electric discharge devices
IPC: H01F38/10
Filed: 1950-09-12
Abstract: 710,922. Supply systems for space discharge apparatus; transformers. ADVANCE TRANSFORMER CO. Sept. 12, 1950 [Sept. 21, 1949], No. 17064/52. Divided out of 710,853. Drawings to Specification. Classes 38(2) and 38(4) This Specification is similar to that of Specification 710,853 to which it refers, but relates to a transformer for supplying a single discharge device.
Patent GB-1147540-A (GB)
Title: Butanetetrol dicarbonates and their production
Inventor: MEYER HANS RUDOLF
IPC: C07D317/38
Filed: 1966-04-19
Abstract: 1,147,540. Threitol and erythritol and their dicarbamates and cyclic dicarbonates. W. R. GRACE & CO. 19 April, 1966, No. 17170/66. Heading C2C. The dicarbonates of DL-threitol and erythritol are prepared by heating DL-butadiene dioxide or meso-butadiene dioxide, respectively, with carbon dioxide. The compounds undergo the following reactions: (a) hydrolysis with aqueous bases to give threitol or erythritol; (b) reaction with ammonia to give DL-threitol- or erythritol- 1,4 dicarbamate; (c) pyrolysis with elimination of CO 2  to give a product containing carbonate groups.
Patent GB-380447-A (GB)
Title: Improvements relating to the production of metal castings
IPC: B22C3/00
Filed: 1931-06-13
Abstract: 380,447. Casting processes. BAILEY, R. W., 20, Grange Avenue, Hale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 13, 1931, No. 17245. [Class 83 (i).] Casting-machines.-In casting metals as in Specifications 360,980 or 369,640, easily fusible salts are used in place of the easily fusible metal. Potassium nitrate and sodium nitrate in molecular proportions or mixtures of chlorides, such as those of calcium, barium, potassium and sodium or iodides of potassium and sodium, may be used. To avoid corrosion of the casting, especially if calcium chloride is present, it is not allowed to cool completely but is heated for forging &c. To avoid metal, being poured, from penetrating a layer of salt in a mould, the layer may be covered by a plate.
Patent GB-691349-A (GB)
Title: Improvements in couches for x-ray and similar work
IPC: A61B6/04
Filed: 1949-06-29
Abstract: 691,349. Bedsteads; operating tables. ELECTRONIC & X-RAY APPLICATIONS, Ltd., and TUNNICLIFFE, E. A. J. Sept. 29; 1950 [June 29, 1949], No. 17262/49. Classes 52(ii) and 52(iii) A couch for X-ray &c. treatment includes a centre section 1 and hinged foot and head sections 3, 5, the centre section 1 being carried by a base plate 6 provided with sleeves 7 slidable on the side longitudinal members 8, 9 of a rectangular frame, the transverse members 10, 11 of which are slidable in sleeves 12 mounted on a bearer plate 14. This bearer plate 14 is carried at the upper end of a post 17 which is housed in a pedestal 15 for both vertical movement and angular movement about the vertical axis. The vertical movement is effected through an hydraulic jack arrangement 21 having a pumping lever 22 which has a handle 23 arranged to be turned with respect to the lever 22 to place the ram-either in communication with the liquid supply or to exhaust. A brake operated by lever 18 locks the post 17 against angular movement when desired. A rubber brake pad 19 carried by a cam arrangement 20 which is operable by handles 20<SP>1</SP>, locks the base 6 against sliding movement when desired. The couch is movable on castors 24 and a foot pad 25, slidable on a post 27 for contact with the ground and operable by a lever 34 through a link 33 and toggle levers 28, 29, of which 29 contains a spring, is provided for locking the couch against movement if desired.
Patent GB-889794-A (GB)
Title: Improvements in or relating to magnetic transducing heads
Inventor: SIMPSON JAMES FRANCIS
IPC: G11B5/127
Filed: 1958-05-30
Abstract: 889,794. Magnetic recording &c. heads. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 21, 1959 [May 30, 1958], No. 17262/58. Class 40 (2). The core of a magnetic head is forged from round permalloy as per Fig. 1, annealed, wound on the remaining round portions 1, 2 and folded (as in Specification 889,793, where the core is made from a flat strip) as in Fig. 3. The rectangular portion 5 becomes the portion 10, 11, 12, the contact between 11 and 12 providing a magnetic shunt since the magnetic properties of the loop 10 will have been affected by the folding. The width of the portions 3, 4, 5 (Fig. 2) is not less than the diameter of the windings 7, 8, allowing close stacking of the cores in a multiple head. In another embodiment, Fig. 4, the core is made in two parts clamped together away from the gap 9.
Patent GB-509364-A (GB)
Title: Improvements in hydraulic brakes for vehicles
IPC: B60T8/26
Filed: 1938-06-10
Abstract: 509,364. Hydraulic brakes. GENERAL MOTORS CORPORATION. June 10, 1938, No. 17271. Convention date, June 16, 1937. [Class 103 (i)] In vehicles having independent suspension for the front wheels such that the front end of the vehicle tends to rise when the hydraulic brakes are applied a device for retarding the flow of liquid as interposed in the conduit leading from the brake master cylinder to the front wheel cylinders to ensure that the rise of the front end of the vehicle is gradual. In the vehicle shown the front wheels are mounted on pivoted arms extending forwardly and normally substantially horizontally and when the brakes are applied these arms tend to turn about the wheel axles towards a vertical position thus raising the front end of the vehicle. In the conduit 67<1>, 67 leading from the master cylinder to each front wheel cylinder, is a valve 73 slidable in a casing 41 and having a peripheral groove 77. When the pressure in the conduit acting through a passage 79 on the under face of the valve is sufficient to overcome a spring 49 acting on the valve through a collar 75, the valve rises to at least partially cut off the transmission of fluid pressure to the front brakes. Theextent to which the valve mav rise is determined by a screw stop 51 and the spring pressure is adjustable by a cap 47. Specification 471,716 is referred to.
Patent GB-1390516-A (GB)
Title: Bituminous composition
IPC: C08L95/00
Filed: 1972-04-14
Abstract: 1390516 Laminates STAMICARBON NV 14 April 1972 [17 April 1971] 17334/72 Heading B5N [Also in Division C3] Two sheets of a copolymer of ethylene, propylene and a poly-unsaturated compound are bonded together by an adhesive composition comprising 78 parts by weight bitumen, 22 parts by weight of an ethylene-vinyl acetate copolymer and 5 parts by weight of polycaprolactone. In a comparative example the aforementioned sheets are bonded together by a composition comprising 78 parts by weight bitumen and 22 parts by weight of an ethylenevinyl acetate copolymer.
Patent GB-273741-A (GB)
Title: Improvements relating to stringed musical instruments
IPC: G10C3/16
Filed: 1927-07-01
Abstract: 273,741. K³chenmeister, H. J. July 2, 1936, [Convention date]. Pianofortes, double; actions, bridges, cases, soundboards, arrangement of strings; harps.-In stringed instruments such as pianofortes wherein each key actuates two hammers, a time interval of 1/6th to 1/30th of a second is arranged between the two impacts so as to produce "stereo-acoustic " effects. In Fig. 2, the single key c causes the two hammers b, b<1> to strike the strings a successively. In Fig. 4, two lengths a, a<1> of a single string, which is passed over a pivoted bridge h' to enable the portions to be tuned by means of one tuning-key, sound a single note, being struck successively by the hammers b, b<1>. The hammers may be arranged between the strings and the soundboard e. Two soundboards may be employed. Pedal devices may be provided to vary the time-interval, or to throw one set of hammers. out of action. The bottom as well as the cover of a grand piano case may be opened to control the sound, and an upright piano may be similarly modified. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is also applicable to harps. This subject-matter does not appear in the Specification as accepted.
Patent GB-819898-A (GB)
Title: Improvements relating to magnetic holding devices
IPC: B23Q3/15
Filed: 1958-06-02
Abstract: 819,898. Magnets. NEILL & CO. (SHEFFIELD) Ltd., J., and BOWER, W. L. June 2, 1958, No. 17531/58. Addition to 758,183. Class 35. [Also in Group XXIII] The magnetic work-holding device of the parent Specification employing a magnetic circuit extending between magnetically-separated polepieces and including a permanent magnet and an electromagnetic coil through which a direct current is passed to magnetize the permanent magnet so that a workpiece can be held on its operative surface, is modified by the use for demagnetizing the permanent magnet of a direct current which is passed through the coil in the opposite direction to the energizing current and is automatically interrupted when it reaches a predetermined value. The current is passed in one direction or the other through the coil by selective operation of push-buttons MAG, DEMAG controlling contactors C1, C2 which are interlocked to operate alternatively and actuate switches in the circuit from an alternating power supply and rectifier RECT to the coil. During magnetization of the magnet, a timing relay TR is connected in the circuit to control the length of time the current passes through the coil to energize the magnet. When the push-button DEMAG is operated, the switches in the circuit are actuated to reverse the direction of current through the coil which, because of its high inductance, restricts the rate of growth of the current which, upon reaching a predetermined value, operates an adjustable relay OL to interrupt the circuit. The circuit is so arranged that the push-buttons can only be operated alternately to energize and de-energize the magnet.
Patent GB-1110055-A (GB)
Title: Improvements relating to polymeric compositions and materials containing them
IPC: C08L33/06
Filed: 1965-04-26
Abstract: Coating compositions comprise an aqueous dispersion of a mixture of (a) 90 to 60 weight per cent of a vinylidene chloride copolymer containing at least 35 weight per cent of vinylidene chloride and (b) 10 to 40 weight per cent of an alkyl acrylate or methacrylate polymer having a glass transition temperature not above 20 DEG  C. The vinylidene chloride may be copolymerized with alkyl acrylates and itaconic acid.  The polymer (b) may be a polymer of ethylhexyl, ethyl, n-butyl, octyl, n-hexyl or n-heptyl acrylate or methacrylate, optionally together with other acrylic or methacrylic esters, acrylonitrile, acrylic acid, acrylamide, vinyl chloride, vinyl acetate or a vinyl ether.  The compositions may be applied to cellulosic and synthetic resin film bases and paper in the manufacture of photographic and drafting films.  In examples (A) vinylidene chloride, methyl acrylate and itaconic acid are copolymerized and (B) ethyl acrylate is polymerized in aqueous media comprising ammonium persulphate, sodium metabisulphite and sodium lauryl sulphate, and the resulting dispersions blended to form coating compositions.ALSO:Substrates such as cellulose ester and synthetic resin film and paper may be coated with aqueous dispersions of mixtures of (a) 90 to 60 weight per cent of a vinylidene chloride copolymer containing at least 35 weight per cent of vinylidene chloride and (b) 10 to 40 weight per cent of an alkyl acrylate or methacrylate homopolymer or copolymer having a glass transition temperature not above 20 DEG C.  Specified substrates are cellulose acetate, triacetate and acetate butyrate, vinyl chloride/vinyl acetate copolymers, polystyrene and acrylic polymers, polyesters, paper and cloth.  The preferred copolymer (a) is a vinylidene chloride/methyl acrylate/itaconic acid copolymer.  The polymers (b) may be polymers of ethyl, ethyl-hexyl, n-butyl, n-hexyl, n-heptyl or octyl acrylates or methacrylates.  The coated substrates may be further coated with gelatine or synthetic resin subbing, non-halation and photographic emulsion layers, or with compositions comprising a particulate toothing agent and a polymeric binder therefor to give drafting films.  In examples aqueous dispersions of vinylidene chloride/methyl acrylate/itaconic acid copolymers and polyethyl acrylate are coated on polyethylene terephthalate films.
Patent GB-1504600-A (GB)
Title: Building partition
IPC: E04B2/76
Filed: 1975-04-28
Abstract: 1504600 Building partition SAINT-GOBAIN INDUSTRIES 28 April 1975 [7 May 1974] 17546/75 Heading E1W A wall, floor or ceiling has a rectangular framework of interconnected first and second framing members supporting plane panels P. The first members have a flange 5 parallel to the plane of the panel P and the second members are of H or T-section with a pair of adjacent flanges also lying in a plane parallel to the plane of the panel P and engaging in a recess in the edge of the panels P. The first and second members are interconnected by a clip A which has a part fitting around, or where the flanges 7, 7a are formed as a rectangular tube, within, an end portion of the second members and a stirrup part 4 slidably engaging over the flange 5 of the first member. The flange 5 may be offset and parallel to the flanges 7, 7a. The panels P may be formed by cladding sheets of sand filled plaster, chipboard or metal on each side of a core layer of glassfibre reinforced elastomer.
Patent GB-154650-A (GB)
Title: New or improved work feeding attachment for electro-plating apparatus
IPC: C25D7/04
Filed: 1919-08-28
Abstract: 154,650. Snell, A. G. Aug. 28, 1919. Electrodes, moving; connexions.-Plating-apparatus comprises a shaft mounted in verticallyadjustable bearings over a vat and provided with collars for spacing annular articles such as wheel rims, which are thus rotated slowly through the electrolyte and supplied with current through the shaft. As shown, the bearings of the shaft 4 are carried by brackets 3. Between the brackets the shaft 4 is covered by a brass or copper sleeve on which the collars 11 are adjustably clamped by screws. A contact brush 7 bears on the sleeve.
Patent GB-722890-A (GB)
Title: Improvements in or relating to the production of viscose
IPC: D01D1/06
Filed: 1952-02-07
Abstract: <PICT:0722890/IV (a)/1> <PICT:0722890/IV (a)/2> Viscose is passed continuously through a zone of which at least one bounding surface is heated or cooled, and the viscose which is in contact with the heated or cooled surface is continuously removed therefrom by a scraping action, the viscose so removed being at once replaced by viscose from the interior of the zone. As shown, viscose is passed continuously through the inlet conduit 14 (Fig. 1) and the narrow annular space between the heated tubular shell 11 and the cylindrical member 16 (Figs. 1 and 3), which is rotated so that the scrapers 23 continuously remove the viscose in contact with the heated surface of the shell 11.  The heated viscose is discharged through the conduit 15.  The scrapers 23 consisting of flexible metal strips are fastened by means of spacers 24 to the member 16 and extend parallel to the axis of the shell 11 and in contact with its inner surface over substantially the whole of its length.  The shell 11 is enclosed within a jacket 25 provided with inlet and outlet conduits for a heating medium such as hot water.  A continuous spiral baffle 28 is provided in the space between the jacket and the shell to prevent channelling of the heating medium.  The jacket 25 is provided with an expansion joint 29 and is covered with a layer of insulation 30. The ends of the member 16 are closed and it is supported on stub shafts 17, 18 extending through stuffing-glands 19, 20 and rotatably mounted in ball-bearings 21, 22.  The apparatus can be used as a cooler by passing a cooling fluid through the space between the shell 11 and the jacket 25.  The apparatus may be used for heating viscose in the process of Specification 722,827.
Patent GB-678883-A (GB)
Title: Improvements relating to drip-retaining means for bottles and other containers
IPC: B65D23/06
Filed: 1950-07-14
Abstract: 678,883. Bottles: &c. stoppers. MILL, A. G. May 28, 1951 [July 14, 1950], No. 17646/50. Classes 66, 125(i) and 125(iii). A bottle 10 or other container has a drip retaining device comprising a neck 11 and surrounding walls 12, 15 forming two troughs 13, 16. Holes 14, 17 allow liquid to drain from either trough but are oppositely disposed so that any liquid issuing from the hole 14 and forming drips is drained back via the hole 17. The container may be of metal and the device may be made separately and be screwed or otherwise attached to the container's neck. A screw cap 20, Fig. 3, screws on a lip 18 and has an abutment 23 which seats on the outer wall 12. Fig. 1.
Patent GB-239833-A (GB)
Title: An improved method of and apparatus for removing water from oils or other liquids
IPC: C10G33/06
Filed: 1925-07-09
Abstract: 239,833. Lozai, A. Sept. 10, 1924, [Convention date]. Film evaporators.-Oil or other Liquids are freed from water by pasing them in film form down the inside of tubes a which pass through a steam or hot-water casing m. The film is obtained either by allowing the oil to flow over the tops of the tubes a or through slots c in the sides of the tubes or through annular passages formed between the tubes c and short narrower tubes held in the upper ends by projections. Some tubes i through which oil does not pass may also connect the upper and lower headers. The upper header is provided with a heating jacket wand is connected through the outlet x with a vacuum pump. The lower header carries an inclined partition b<1> which leads the oil onto a thermometer pocket c<1>. The lower ends of the tubes a are bevelled or formed with notches to prevent accumulation of the oil.
Patent GB-829397-A (GB)
Title: Extinguishing chamber for oil electric circuit-breakers for medium voltages
IPC: H01H33/75
Filed: 1958-06-03
Abstract: 829,397. Oil-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. June 3, 1958 [June 6, 1957], No. 17661/58. Class 38 (5). An extinguishing chamber comprises an insulating cylinder 1 and a contact 9 which traverses a nozzle 11 in an insulating sleeve 10 and an opening 8 in a guiding member 6 in an oil reservoir 5. The latter communicates with an annular space 15 through an opening 18, whilst space 15 communicates with a space 17 through openings 16 between locating parts 12 on the sleeve 10. On opening, arc gases and oil initially pass through openings 16 into space 15 so compressing the gas above the oil, but when the contact 9 clears the nozzle 11, a blast of arcextinguishing gas passes direct into the sleeve and oil reservoir. Thereafter oil and gases are forced from the reservoir and space 15 into the space 17 and through the opening 18, stability being attained when the gas pressure in space 15 equals the pressure of the oil column in space 13.
Patent GB-651669-A (GB)
Title: Method and apparatus for the recovery and separation of fibre, flesh and cuticle from flume effluent produced during the process of decorticating the leaves of the sisalplant and the like
IPC: D01B1/40
Filed: 1948-07-01
Abstract: 651,669. Preparing fibres for spinning. ROBERTSON I. S. July 1, 1948, No. 17710. [Class 120(i)] Fibre, flesh and cuticle are separated from the flume effluent, i.e. water-borne waste matter, produced during the decortication of the leaves of sisal and the like, by draining, compressing and squeezing the waste matter into the form of a compact mat, feeding the mat against a rapidly revolving and partly-enclosed disintegrator drum 6 the periphery of which is provided with beaters 7 to change the compact mat into a loose or fluffy mass, subjecting the fluffy mass to an air blast whereby it is carried against a row of inclined and down-: wardly projecting metal rods or fingers 9 between which most of the free flesh and cuticle will pass while the fibre is deflected by the fingers on to a conveyer belt 12, the cuticle and flesh being afterwards subjected to a drying operation followed by treatment in a cyclone separator. As shown, water-borne sisal waste passes along : a flume F and over a separator grid F\ comprising - downwardly sloping bars, to fluted squeezing rollers 1 whence a compact mat of waste matter is conveyed by a belt 2 to further fluted squeezing rollers 3 and thence to drum 6. Disintegrated waste carried round inside a cover 8 is blown by an air blast from a duct 10 against rods 9; cuticle and flesh passing between the rods is deposited on to a transverse travelling belt 11; fibre deposited on belt 12 may be conveyed to a second and similar disintegrating treatment. The fibre now passes to a revolving drum 14, fitted with rows of stout pointed pins, which detaches any cortical tissue still adhering to the fibres; the tissue is carried by air blast from a duct 10a through a screen of rods 9a to be deposited on a belt 16, while fibre caught by the rods is deflected on to a belt 17 which may convey it to treatment by a second and similar pin-fitted drum. The fibre is finally conveyed to drying tables or to a mechanical dryer after which it may be subjected to another disintegrating drum such as 6 to remove any residual stiffness. Cuticle and flesh from belts 11, 16 are carried by a belt 18 and an elevator 18a to a drum dryer which dries the pulp to the stage where the cuticle begins to peel off the flesh, after which cuticle and flesh are separated in a cyclone separator.
Patent GB-320656-A (GB)
Title: Improvements in bi-fuel supply systems of internal combustion engines
IPC: F02M1/00
Filed: 1928-06-19
Abstract: 320,656. Guibiansky, J. June 19, 1928. Addition to 273,085. Spray carburettors.-The parent Specification describes a device for controlling the supply of light or heavy fuel to a carburettor in accordance with the temperature of the combustion gases. The device comprises a spring-loaded piston such as 2, Fig. 1, subject to the expansive force of a liquid 5 in a container 6 located, for example, in the exhaust manifold 7. When such a device is applied to vehicles that are frequently stopping, it has not time to cool sufficiently to bring the parts into the position to supply the lighter fuel, and the invention consists in combining with such a device, a mechanicallyactuated valve that ensures, irrespective of the position of the thermal device, a supply of light fuel at starting and until a certain speed of engine or vehicle is reached. The cylinder 1 containing the piston 2 has inlets 9, 10 and outlets 11, 12 for heavy and light fuel respectively. The outlets lead to a second cylinder 13 containing a piston 16 similar to piston 2, but actuated through linkage 20, 19, 18 by a governor driven preferably from a moving part of the vehicle. Pipes 14, 15 convey the heavy and light fuels to the carburettor. A bye-pass 21 connects the inlet pipe 10 to the outlet 12 for the light fuel. The thermal device is shown in the position for admitting heavy fuel, the parts being heated, but such heavy fuel cannot pass to the carburettor through pipe 14 until the vehicle or engine speed is sufficient to cause the governor to raise the piston 16. The engine, therefore, is always supplied with light fuel for starting. In a modified construction, Fig. 2 (not shown), the cylinder 13 is arranged at right-angles to the cylinder 1. In a further modification, a threeway valve replaces the piston 16. A governor control of the three-way valve or piston for fuels contained in two float chambers supplied from the pipes 11, 12 is described in connection with Figs. 4 and 5 (not shown). In. Fig. 6, the heavy fuel, supplied through pipe H, enters the thermal control device T and then passes through a heating coil in the exhaust pipe O before entering the float chamber CH. The light fuel in pipe L passes to float chamber CL, the flow from the float chambers to the jet J being controlled by the three-way valve or piston actuated by the governor G driven from the propeller shaft N of the vehicle.